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@roy167 yep thats it, thanks for the explanation.

Can anyone help me with the below question, it seems like such an easy concept but i can't quite wrap my mind around this one. 

I just went through the question and got the same answer.

I believe you are right, my notes seem to agree with you. I couldn't find that problem in graffeo but i did find the below one. This looks correct.

I see that logic, thanks for correcting me

Right but its about isolating the fault. Breakers 2&4 cannot be the backup protection for breaker 5 because breakers 2,4, &5 are the primary protection for that bus, then you go one breaker away, which is breaker 1&3. Hopefully, this figure shows the point I am trying to make. See...

From what I understand, you have to look at the zones of protection. Breakers 2,4,5 are primary protection for bus C, 6&7 for bus E. If there's a fault at D and 5 fails to open, you dont want to have breakers 2&4 as your backup because they could stick as well, there could be something...

In the above question, in their calculation of power the solution uses the 220V. Aren't you supposed to be using the rated voltage of 208V? 

Thanks for that, I agree with what you said about the camara exams, its similar to the graffeo in that its testing you on looking up stuff thats in their reference manual. That being said, i do find the questions to be different and good practice. I also agree that they skip steps, and some of...

I am 100% on the Paithankar train. Easy to ready, doesn't have many examples but the ones it does have are pretty in depth. While doing practice exams i have definitely found myself looking in it for answers. I looked through blackburn early on, got nothing from it. GE is a little bit better...

I don't think so. How can they move to a closed book exam and make it more difficult, that would be ridiculous 

What are everyone's expierence with the Camara exams? I feel like there are quite a few errors in his exams (i've only gone through the first one). Does anyone else feel this way? 

I am doing almost the same as @ellen3720. I haven't and will likely not read every section but I would say reading through the meat of the book is probably worth it. The "meat" being xfmrs and motors/generators. The transmission and distribution section as well as harmonics also seem like...

Not any text book, but the things that grainger covers I've found articles, notes, etc online that explain the concepts in plain english. Also while doing like 6 practice exams I've only opened the book once and even then it didnt have what i was looking for.

My line up looks almost identical and additionally I will be bringing the Chapman book (redundant to wildi i know, but i like the index), the Paithankar book and IEEE 242 both for protection, and (probably) a batteries book. On the fence about Grainger, I was studying from it initally, but I...

Bump, I am looking for some surge protection references. Thanks 

Part of the difficulty comes from it being so open within any of the topics. With that being said in order to get better coverage of those topics you just gotta read. I've read from people here, that passing the exam is a combination of doing lots of practice tests and reading a lot about the...

I wanted to get some input on how you are preparing when it comes to protection, since it seems this is the most difficult section on the exam i've started dedicating  some more time to it. In terms of the actual exam, are questions more conceptual or mathmatical? It seems like so much of the...

This sounds like a great idea, thanks for sharing